Pressure Accumulator Overview
NOTE:
The central hydraulic system is filled with fluid, Part No. G 002 000.
CAUTION:
DO NOT re-use any fasteners that are worn or deformed in normal use. Many fasteners are designed to be used only once and become unreliable and may fail when used a second time. This includes, but is not limited to, nuts, bolts, washers, self-locking nuts or bolts, circlips, and cotter pins. Always follow the recommendations given in this publication. For replacements always use new parts.
NOTE:
When the pressure accumulator is replaced, fill the system with new hydraulic fluid. The system bleeds itself during driving operation. Check fluid level in reservoir, top off if necessary.
- Return line
- 10 Nm (7 ft lb)
- Brake servo to common return line
- Common return line
- Hose clamp
- Return line
- Fluid cooler to common return line
- Bracket
- Self-locking nut
- Always replace
- 10 Nm (7 ft lb)
- Banjo bolt
- 25 Nm (18 ft lb)
- Without filter
- Not applicable to USA/Canada
- Only on vehicles with ride level control
- O-rings
- Not applicable to USA/Canada
- Only on vehicles with ride height control
- Pressure line
- 10 Nm (7 ft lb)
- Pressure accumulator to brake servo
- Before removing, reduce operating pressure by depressing brake pedal approx. 20 times with engine NOT running
- Bushing
- Buffer
- Pressure accumulator for hydraulic brake servo
- With integrated check and pressure relief valve
- Before removing, reduce operating pressure by pushing down brake pedal approx. 20 times with engine NOT running
- Use proper disposal procedures for removed pressure accumulators
- Gas fill pressure, checking PRESSURE ACCUMULATOR, CHECKING GAS FILL PRESSURE
- Pressure relief valve, checking PRESSURE ACCUMULATOR PRESSURE RELIEF VALVE, CHECKING
- Check valve, checking PRESSURE ACCUMULATOR CHECK VALVE, CHECKING FOR LEAKS
- When installing a new pressure accumulator in vehicles with level control, remove plug first
- Mount
- O-ring
- Always replace
- Install on both sides of fitting on high pressure hose
- Banjo bolt
- Always replace
- 25 Nm (18 ft lb)
- Equipped with filter on side
- High pressure hose
- Hydraulic pump to pressure accumulator
- Pressure hose
- Not applicable to USA/Canada
- Only on vehicles with ride level control
- Screw/washer assembly
- 35 Nm (26 ft lb)
- Return line
- Pressure accumulator to hydraulic fluid reservoir
- Return line
- Rotary slide valve housing to T-connector
- Return line
- Check valve to T-connector
- Not applicable to USA/Canada
- Only on vehicles with ride level control
- T-connector
- Arrow showing vehicle direction of travel